code: def test_defaults(self):
      m = maps.Map()
      state = m.get_state()
      assert state["map_type"] == "ROADMAP"
      assert state["mouse_handling"] == "COOPERATIVE"
      assert state["initial_viewport"] == {"type": "DATA_BOUNDS"}
      assert state["layers"] == []
  
file_path: gmaps/gmaps/tests/test_maps.py
imports: import unittest
  import traitlets
  from ..None import maps, heatmap_layer
label_desc: Use image node_id 1 for calling the Map obj's underlying member method code with example usage: obj.test_defaults() without return types